An acronym for Big Lipped Ugly Mother Fucker, and a slang used by white surfer types from the Playa Del Rey/ Westchester, CA area in the late 1970's to describe a person of African descent with out angering them into a tribal uprising.
Stands for Big Lipped Ubangy Mother Fucker. It is not ugly, like the previous example stated. Ubangy is slang for someone of African tribal descent. A deroggatory term for negroes..